Head for siphon-bottles and other vessels.



J. R. TRIGWELL.

HEAD FOR SIPHON BOTTLES AND OTHER VESSELS.

APPLICATION HLED DEC.I8. m4. RENEWED JUNE 15, 1913.

1 ,27 3,955. Patented July 30, 1918.

Z SHEETS-SHEET I.

J R. TRIGWELL. HEAD FOR SIPHON BOTTLES AND OTHER VESSELS.

APPLICATION FILED DEC. 18. 19M. RENEWED JUNE 15. 1918.

1 ,273,955. Patented July 30,1918.

2 SHEETS-SHEET 2.

m: NORRIS PETERS co.. pnnrpunmu WASH/Nam".

JAMES RICHARD TRIGWELL, 0F NonBURY, ENGLAND.

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Specificationtof Letters Patent. Patented J ul y 30,

Application filed December 18, 1914, Serial No. 877,893. Renewed June 15, 1918.' Serial, No. 240,247.

To all whom it may concern Be it known that I, J AMES RICHARD TRIG- wnLL, a subject of the King of Great Britain,

and residing at Bishops Park Road, Norbury, in the county of Surrey, England, have invented certain new and useful Improvements in or Relating to Heads for Siphon-Bottles and other Vessels, of which the following is a specification.

This invention relates to heads for siphon bottles and other vessels of the class which are chiefly constructed of porcelain or other vitreous material and consists of improvements upon inventions in respect of which Letters Patent were granted to me in Great Britain No. 19239 of 1910, Nos. 510 and 27095 of 1911 and No. 182 of1913.

The object of said improvements consists principally in preventing leakage past the india rubber spring and the valve.

In carrying the present invention into effeet, a vertically movable valve is employed, mounted in an axial'cylindrical bore in the body of the head whichis formed with a spout the bore of which communicates with that of the body, the valve being preferably constructed of ebonite strengthened by a metal wire arranged axially,.thereof, said valve being provided with a cap, and'is kept closed bv an india; rubber spring, the lower end of which is received in a recess formed in the upper end of the body of the head and the upper end of the valve stem is surrounded by a ringwhich' is formed inclined on the inner side inwardlyf from its lower edge and compresses by .means of themclined side the india rubber spring at that point, when the siphon vessel is being chargedthrough the spout, tomake ;a tight joint at its apex.

The wall of the india rubber spring is preferably reinforced by woven fabric or other suitable iii extensible material, to prevent undue expansion thereof and is preferably thickened at the base. r

The valve is locked against its seat to prevent leakage in transport, and for this purpose thecap of the valve is provided with fingers which normally rest in recesses in the body but upon the cap being rotated to lock the-valve they engage the edges of the recesses and ride up them on to a shoulder upon the body, stops being formed thereon to limit the motion of the cap to prevent it becoming unscrewed fromtne stem of the valve, and in order to prevent distortion of .the india rubber spring and the packingon the head of the valve, the upper end ofthe stem thereof is formed {with a screw thread, preferably square, upon which, the .cap is adapted to rotate easily.

In theaccompanyingdrawingsz- Figure 1 is a front elevation-of a headfit teclto'the neck of a siphon bottle and constructed according to the present invention.

Fig. 2 is a plan thereof with the caps, valve and rubber spring removed.

. Fig. 3 is a vertical transverse section taken on the line 11 of Fig. "1. I I

I Fig. 4 is a side view of the valve separately. 1

- Fig. 5 is a similar view to Fig, 3 or a.

cap separately. Fig. 6 is a plan of the conical india rubber spring.

5 f Fig. 7 is a transverse section-taken on the line 22 of Fig. 6. Fig. 8 is a similar view toFig. 7jillus trating a slight modification in the construc-v tion of the conical india rubber spring. Fig. 9 is a similarviewpto'Figa7 illustrating a further slight-modification thereof.

Fig. 10 is asimilar view to Fig. 7 illustrating a further slight Inodificationthereof. Fig. 11 is asimilar view to Fig. 7,ill ustrating a further slight modification thereof.

Fig. 12 isa similar view to ,Fig. 7 illus trating a further slight modification thereof.

.. Fig. 13 is a similar view'to Fig. 7 -illus-.

trating a further slight modification thereof.

Fig. 14 is a similar view to Fig. 7 illustrating a further slight modificationthereof. Fig. 15 is a similar view to Fig. v 3 illustrating a slight modification inthe construction of thecap of the valve in which the ring with inclined inner side is separate therefrom. Fig. 16' is a plan of'the ring withinclined inner side separately. Fig. 17 is a transverse sectiontaken on the line 33 ofFig. 16.

Fig. 18 is a similar trating a further modification in the con struction of the india rubber springand.

connected parts. I

Fig. 19 is a similar viewto Fig. 17 of a modified form of ring for-compressing the top of theconical-rubber spring. Fig. 20 is a similar View: to Fig. 17 of a turther modified form offing; i

View a). Fig. *3 illus- Referring to Figs. 1 to 7-a represents the porcelain body of a head for asiphon bottle; 6 represents the valve wh ch is preferably constructed of ebonite and strengtlr The porcelain body a is formed with an axial bore a to receive the valve stem 6 which is of uniform diameter to fit loosely the said bore.

The upper end of the body (a of the head is formed with a circular recess a and a fiat floor and the sides of which are arranged at an angle to receive and fit the thickened base 6 of a conical hollow india rubber spring 6 which is formed cylindrical at its upper end and is received loosely into a recess constituted by a ring a and the bottom of a boss hereinafter described, the inner side of which ring is inwardly inclined from its lower edge so as to prevent the expansion of the said spring a at its apex during the charging of the vessel through the spout and make a tight joint at that point. The object of the outer, upper end 6 being arranged loosely within the ring 6 is to enable the said rubber spring to be easily depressed.

The apex end of the said spring 6 is thickened and formed with a central perforation e'tightly fitting the valve stem Z) and is flat upon the top, upon which. the underside of the boss 6 of the cap a bears.

The conical rubber spring 0 also serves as a packing between the valve stem Z) and the side of the recess a in the upper part of thebody ta;

It will be seen that the pressure of the liquid, when the valve 6 is open, acting within the conical india rubber spring 6 forces the side at the base against the in-, clined side of the recess a thereby effectually making atight joint by causing a clench at those parts with the object of preventing any leakage during the filling and discharge of the bottle.

By this arrangement of the conical india rubber spring a the valve 6 is permitted to work freelytherethrough while at the same time preventing leakage.

The valve stem Z) is provided with a head 6 at its lower end and with a packing ring I) formed with a rounded edge 7 adjacent to its face for the purpose of enabling the valve 5? to come away more easily from its seat which is flat and'formed in a recess at the lower end of the axial bore (6 in the body a, The valve stem I) has formed on it aneck 6 located opposite the bore a of the spout and with a vertical groove 5 from the neck 5 to the head 5 through which groove the liquid passes into or out of the bottle when the valve is depressed by means of a porcelain dome shaped cap 6 herein after described.

'At the upper end of the valve stem Z) is formed a screw thread 5 preferably square and a corresponding screw thread is formed in the axial boss 0 of the porcelain dome shaped cap a hereinbefore referred to, and the said cap e' is adapted to work freely on the screw thread 7) of the valve stem Z for a purpose hereinafter described.

Upon screwing the valve stem into the said cap 6 the boss 6 thereof bears upon the upper end of the conical rubber spring 0 and compresses it against the valve stem Z) and at the same time vertically compresses the conical rubber spring 0 sufficiently to hold the valve 6 upon its seat.

In order to lock the valve. 25 upon its seat for transport the dome shaped cap 6 is formed with descending fingers 6 which are adapted totake a bearing upon a shoulder on the upper end of the body a of the head when the said cap 6 is turned so as to ride over the rounded corners a of open ended recesses a formed in the side of the body a and corresponding to the lingers e of the cap 6 in which recesses a the fingers a are normally received and descend into when the cap e is depressed to open the valve 6 In order to limit the rotation of the said cap 6, stops a are arranged upon the shoulder between the recesses a in the side of the body a and against which the fingers 6 come when the cap a is rotated in either direction to lock the valve. a is an eye formed on the body a under the spout for supporting the finger when actuating the cap a to open the valve 6 and for protecting the finger from contact with the fluid discharging from the spout and for strengthening the latter. i

In consequence of the dome shaped cap a being rotatable on the screw thread b of the valve stem 1) and therefore independently of it there is no distortion of the india rubber spring a and valve packing and therefore no leakage is likely to occur at these parts.

The body a is connected to the neck 0 of the bottle by means of the well known divided metal ring (Z formed with a screw thread to coact with a female screw thread in the body (t.

Fig. 8 illustrates a slightly modified con struction of conical rubber spring 0 in which the side wall thereof is of uniform thickness and the lower inner end reinforced by a lining of woven fabric 0 or other similar inextensible material secured thereto.

Fig. 9 illustrates a further modified construction of conical rubber spring 6 in which the reinforcement is arranged in the thickness and extends the whole depth thereof.

Fig. 10 illustrates a similar arrangement to that lastly described, but in this case the reinforcement c extends only' partly throughthe depth of the fconical rubber sprin'g'c.

Fig. 11 illustrates: afurtherslightly modified construction of conical rubber spring 6 in which the reinforcement 9" is secured butsidea-nd extends from top to bottom thereof.

Fig. 12 illustrates a further slightly modi ficd construction of conical rubber spring a in which the reinforcement is dispensed with.

Fig. 13 illustrates a further slightly modi fied construction in which the relnforcement consists of'a thickening e secured on the lower inner end of the wall of the conical rubber spring 0, V

Fi 14 illustrates a further slightly modified orm of conical rubber spring 0 in which the side wall is strengthened by a thickening 6 arranged 'upon the outside thereof.

Figs. 15' to 17 illustrate afurther modification in which the ring e is separate and formed with an annular horizontal flange to bear against the box. of the cap 6.

The ring 6 is made'of non-extensible material, such as vulcanite or a metal or metallic substance;

The conical rubber spring 6 is similar to that shown at Fig. 8 but inthis' case the reinforcement 6 extends the ,wholfe depth thereof. i I

Fig. 18 illustrates a, furthermodification inwhich the conicalrubber spring 6 is dis pensed with and a hollow cylinder 6 of'india rubber closely fits the valve stem 6 and in addition, to the ring 0 at its upper end, has a ferrule or band 6 surrounding and closely fitting the lower end of the rubber spring 0 and the ferrule e is constructed of vulcanite or the like; on it might be of metal or a metallic substance and in this case the screw threaded end I) of the valve stem 6 screws into a lining 6" cast or otherwise fixed in the boss 0 of the cap 6.

Fig. 19 illustrates a further slight modification in which the horizontal flange of the ring e is dispensed with and the sides of the ring are formed inclined, the said ring being adapted to be employed with any of the conical rubber springs herein before referred to.

Fig. 20 illustrates a further slight modification in which the ring 6 is formed as a simple cylindrical band similar to that e of Fig. 18 and is adapted to be employed with any of the rubber-springs hereinbefore described.

hat I claim and desire to secure by Letters Patent of the United States is 1. A head for siphon bottles and other vessels comprising a body adapted to be connected therewith, said body having a discharge way adapted to communicate with the interior of the vessel and leading to the io r et, he s d' wai'zb ug iirevid d j with a valve seat,1avalve 'member associated with the said seatand having a stem project ing outwardly from the body, an adjustable cap connected with the outer end of the valve stem, a hollow member'fof elastic material having imperforate side walls'interposed'between thebody and cap withits ends in contact therewith and surrounding the valve i stem, andmeans provided within the cap for retaining the adjacent end of the'fsaid hollow member 7 to prevent lateral expansion ofthesame. "2; A head for siphon bottles andpther vessels comprising a bod adapted to be connected therewith, said ody having adiecharge way adapted to'communicate ,with

valve stem, a hollow spring memberof elasticj material having imperforate side Walls interposed between thebody and cap with its ends in contact therewith and surrounding the valve stem, and means for retaining the opposite ends of the spring to prevent I V lateral expansion of the same.

A head for siphon bottles and other vessels comprising a body adapted to be connected therewith, said body'havi'ng a discharge way adapted to communicate with the interior of the vessel and leading to the exterior thereof, the said way being provided with a valveseat, a valve member associated with the said seat and having a stem projecting outwardly from the body, an adjustable capconnected with the outer end ofthe valve stem, a hollow spring member of elastic material having'imperforate side walls interposed between the body and cap with its ends in contact therewith and surrounding the valve stem, and an annular retaining member of camparatively inexpansible matethe adjacent end of the spring to prevent lateral expansion of the same.

4. A head for siphon bottles and other vessels comprising a body adapted to be connected therewith, said' body having a discharge way adapted to communicate with the interior of the vessel-and leading to the exterior thereof, the said way bein provided with a valve seat, a valve mem er as-' sociated with the said seat and having a stem projecting outwardly from the body,

an adjustable cap connected with the outer 7 end of the valve stem, a hollow spring member of elastic material having im erforate side walls interposed between the ody and cap with its ends in contact therewith and surrounding the valve stem, and an annular 11o rial provided within the capandembracing 5 retaining member, ofcomparatively inexpansible IUEltGI'lltl prov ded \v1th1n the cap and embrac ng the ad acent end of the spring to prevent lateral expansion of the same, the inner surface of the said annular member being frusto-conical in form and the outer surface of the spring which contacts therewith being 'ofcorrespondingshape 5. A head forcsiphon bottles and other vessels comprising a body adapted to be connected therewith, said body having a discharge way adapted to' communicate with the interior of the Vessel and leading to the exterior thereof, the said .way being provided with a valve seat, a valve memberassociated with the said seat and having a stem projecting outwardly from the body, an adjustable, cap connected with the outer end of the valve stem, a hollow, frustoconical spring member of elastic material having imper'forate side, walls interposed between the body and the cap with' its ends in contact therewith and. surrounding the valve stem, the said body being provided with a recess for the reception of theadjacent end of the spring, the said recess being constructed to conform in shape to the said spring end, and an annular retaining member provided withinthe cap and embracing the adjacent end of the, spring, the, inner surface I of the said annular member being of the same form as the said spring end to fit the same uniformly.

6L A head for siphon bottles and other vessels comprising a body adapted tobe connected therewith, said body having a discharge way adapted to communicate with the interior of the vessel and 'leadingto the exterior thereof, the said way being pro vided with a valve seat, av valve member associated with the said seat and having a stem projecting outwardly from the body, an adjustable cap connected with the outer end of the valve stem, a hollow frusto-conical spring member ofelastic'material having imperforate side walls interposed between the body and cap with its ends in contact therewith and surrounding, the valve stem, the smaller end of the spring, being disposed outermost, the body being" provided with a recess having undercut side walls" adapted v to embrace the corresponding, end of the spring, and, means provided at the opposite end of the 'spring for retaining the same to prevent lateral expansion thereof.

In testimony whereof I affix my signature in presence of two witnesses.

Witnesses v THOMAS CLARKE,

' JOHN Donn.

Copies of this patent may be ehta' nedjor five cents each, by addressing theffcom n issipner. of Patents, i 7 Washington, Q. Q. 

